I company production of track chassis selection high quality of walking motor, and deceleration machine, volume small, and weight light, and output torque big, and brake reliable, overall walking institutions more compact, applies Yu rock heart rig, and non-excavation rig, and tunnel rig and the mine and other engineering mechanical, rubber track used Japan technology production of building mechanical type, hosted capacity, and traction big, noise low, not injury and the asphalt surface, has good of driving performance. distribution has within hid type speed big torque motor walking deceleration machine, has high through performance. shaped walking frame, Structure strength, and stiffness big, using folding bent processing. support heavy round, and oriented round used deep ditch ball bearing, one-time added butter lubrication, from using in the maintenance and maintenance refueling. axis end double sealed structure, guarantee lubricants sealed but leak, and can prevent mud into round cavity. support heavy round, oriented round, and drive tooth used alloy steel and by quenching processing, wear sex good, using life long. spring rose tight institutions color screw Rod regulation, reliability high.